Buffer for gabs



4 Sheetgsheet 1.

(No Model.)

'Wp Rg. S. JQNES. B'UHER FOR GARS'. No. 506,116.

Oct. 3, 1893.

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Patented 2. t e .e .n S Lw e. e n S 4 R G Oum ,100. ...E .SR Rn D... .UWB

(No Model.)

Patented ont.. 3, 11893.

(No Mo'd-e'l.) 4 Sheets-Sheet k3.

W. R. JONES. BUP PoR CARS.

No. 506,116. f Patented 0013.3, 1893.

(No Model.) 4 sheets-shea 1. W. R. S. JONES.

BUFFER FOR CARS.

No. 506,116. Patented Oct. 31,1893.

NrTED l STATES PATENT OEEICE.

WILLIAM RICHARD SUMPTION JONES, OF AJMERE, INDIA.

BUFFER FOR CARS.

SPECIFICATION forming part of Letters Patent No. 506,116, dated October3, 1893.

Application tiled November 23, 1892. Serial No. 452,958. (No model.)Patented in England May 3, 1892. No. 8,355; in Cape of Good HopeDecember 3, 1892, No. 803,l in South Australia December 13, 1892, No.2,375; in Queensland December 19. 1892. No. 2,268; 1n New ZealandJanuary 4, 1893, No. 5,983. and in India April 20, 1893, No. 311l To allwhom it may concern: j

Be it known that I, WILLIAM RICHARD SUMPTION JONES, a subject of theQueen of Great Britain and Ireland, residing at Ajmere, Rajputana,India, have invented Improvements in Central Buffers for Railway andother Vehicles, (for which Letters Paten t have been granted in thefollowing countries England, May 3, 1892, No. 8,355, as commnnlcation toW. Lloyd Wise; Cape of Good Hope, December 3, 1892, C. C. 277, folio No.803; Queensland, December 19, 1892, No. 2,268; New Zealand, January 4,1893, No. 5,983; India, April 20, 1893, No. 311 of 1,892, and SouthAustralia, December 13, 1892, No. 123375,) of which the following is aspecifica- Ion.

This invention of improvements in central buers with coupling hooks forrailway and other vehicles has for its object to dispense with the usualbuffer or shank guides thereby obviating friction and wear of the buffershanks or cases occasioned by the abrasion of contact surfaces. For thispurpose in cen-- tral buffers according to this invention the draw ofthe push spring or both, or a conibined draw and push spring, is or areby suitable means connected to a convenient part of the buifer or itsshank and also to the headstock, or spring socket secured to the headstock, in such manner as to prevent the sprlng turning in its socket, oron the head stock, orthe buffer shankturning in the spring.

In the accompanying drawings:-Figure l 1s alongitudinal verticalsection, partly in elevation, and Fig. 2 is a plan, of a central bufferwith coupling hooks constructed according to this invention. Figs. 3, 4and 5, are cross sections, to a larger scale, taken on the lines a: y yand ,a a respectively, of Fig. 2, the volute draw and push springs beingremoved.

1 is a volute push spring mounted at one end within a spring socket 2that is secured to the head stock 3 of the vehicle to which the bufferis applied. This spring is prevented from turning within its socket byprojections or keys 4, 4i, that are fixed to or formed in one with th'eportion of the spring 5o and engage in corresponding slots or recesses5, 5 formed in the inner side of the spring socket.

1aL is a volute draw spring mounted within a spring socket 2 also fixedto the head stock 3.

6 is the buffer head in which a coupling hook 7 is pivoted in theordinary manner so as to work in a vertical plane during coupling anduncoupling as well understood.

ta is the shank of the buffer head arranged to extend through the pushand draw springs within which it is retained by a bearing plate 8 thatis set up by nuts 9 on the screw threaded inner end of theshank. Toprevent this shank turning within the spring 1, it has formed in onetherewith a projection or key 10 arranged to enter a corresponding slotor opening in the spring 1.

11 is a renewable Wearing piece in the form of a metal washer interposedbetween the spring 1 and the buffer head 6 and formed with a slot 11adto permit of its being moved past the projection or key 10 into theposition shown.

As will be seen the hole 12 in the head stock through which the buffershank passes is of such a size that the said shank cannot touch the edgeor wall thereof and become worn at thispart as has heretofore beenusual.

By the construction described it will be seen that wear of the buffershank due to friction is practically obviated and that any tendency ofthe spring or buffer head to turn will be elfectually prevented so thatthe coupling' hook 7 will at all times be maintained in a vertical planeand in proper position to couple and uncouple. Furthermore by mountingthe buifer head in the manner described the buffer is made flexible in atransverse direction so that when the vehicle to which it is applied ispassing around a curve, the spring 1 will yield slightly in a transversedirection and permit the buffer head to automatically adjust itselfthereby preventing or considerably lessening friction and consequentWear between its end face and that of the corresponding buffer on anadjacent vehicle. For this reason the end faces of buffers constructedas described may be made flat as shown.

As will be evident the invention can be car- Ioo ried out in variousWays. Thus to prevent the spring turning, the-projections or keys 4, 4ainstead of being carried by the spring may be carried by the inner sideof the spring socket and engage with corresponding slots in the end ofthe spring, or the spring may be formed at the base with a flange asindi cated at 13 by which it can be fixed direct to the head stock, thespring socket being then dispensed with. Also to prevent the head orshank of the buffer turning in the spring the projection or key l0 mightbe formed on the spring and be arranged to enter a groove or recess inthe adjacent part of the head or shank of the bufi'er as indicated indotted lines at 14. Or the spring and its socket and the buffer shankand the outer end of the spring, instead of being each of circular formin cross section as shown, may be of such a shape as for example oval,square or polygonal that the spring could not turn in its socket, andthe buffer shank could not turn in the spring.

It will also be evident that the shank of the buffer head instead ofbeing fixed, in a rotary sense, in the push spring 1, may be similarlyfixed in the draw spring la which in this case would need to be fixed sothat it could not turn. The former arrangement however is consideredmost advantageous in practice.

What I claim is- 1. A central buffer for railway and other vehiclescomprising a spring fixed at one end so that it cannot turn andunsupported at the other end and a buer head and shank carried by andlocked in a rotary sense to the outer free end of said springsubstantially as herein described for the purpose specified.

2. A buffer for railway and other vehicles comprising a spring rigidlyfixed at its larger end to the vehicle, a buffer head locked in a rotarysense to and carried by the smaller and free end of said spring andhaving the portion of its shank that extends inward from the free end ofsaid spring free to move in any direction about the free end of saidspring as a center, and a coupling hook pivoted to said buer headsubstantially as herein described for the purpose specified.

3. A central buffer for railway and other vehicles comprising a volutespring having its inner and larger end fixed so that it cannot rotate, abuffer head with shank carried and guided by the outer and smallerfreeend of said spring, means for locking said buffer head and shank to theouter free end of said spring so as to prevent them turning relativelyto said spring and a coupling hook pivoted to said buffer headsubstantially as described for the purpose specified.

4. In a central buffer for railway and other vehicles a volute pushspring, a fixed spring socket wherein the larger end of said 'spring islocated, means forlocking said spring within said socket so that itcannot turn therein, a buffer headprovided with a coupling hook andhaving its shank extending inward through the outer and smaller free endot said spring, and means for locking said shank to the free end of saidspring in a rotary sense substantially as herein described for thepurpose specified. X

5. In a central buer for railway and other vehicles the combination ofvolute push and draw springs one of which has its larger end fixed sothat it cannot rotate, a buffer head having its shank extending througheach of said volute springs and provided at its inner end with means forpreventing itleaving the small free end of said draw spring, means forlocking said shank in a rotary sense to that spring the largerend otwhich is fixed and a coupling hook pivoted to said buffer head,substantially as herein described for the purpose specified.

(i. In a central buffer forrailway and other vehicles the combination ofa volute push spring, a socket secured to the head-stock of the vehiclesand wherein said spring is fixed in a rotary sense, a volute draw springa socket secured to said headstock and wherein said `draw spring ismounted, a buer head having its shank extending through each of saidvolute springs, a bearing plate arranged on the inner end of said shankand bearing against the inner end of said draw spring, nuts actingagainst said bearing plate, a removable washer interposed between saidbufer head and push spring and a key arranged to lock said shank withinthe front end of said push spring and prevent it turning therein,substantially as herein described for the pur? poses specified.

7. In a central butter, the combination of a butter head 6 Withlshank(it, volute springs l, l, surroundingr said shank, spring sockets 2, 2,for said springs and means for connecting one of said springs with itssocket and with the shank in a non-rotatable manner, substantially asherein described for the purpose specified.

8. In a central buer, the combination of a butter head wit-h shank 6a,volute springs l, la surrounding said shank, spring sockets 2, 2 forsaid springs, a key lO and slot or recess 10c for locking the spring 1and shank 6 together in a rotary sense, and a pin 4 and slot 5 forlocking said spring l and socket 2 together in a rotary sensesubstantially as herein described for the purpose specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribin g Witnesses.

WILLIAM RICHARD SUMITION JONES.

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